Motion sensitive security lights

[2Loose]

Wondering if anyone has any ideas. The security light outside my house seemed to have gone and being tardy, I have not yet got a new bulb for it. Nothing triggers it any more and so I assumed the bulb had gone, but I just noticed a glow from a window and there it was, burning away at nothing. 5 minutes later, it is off so I try and trigger it by going out and waving at it...nothing, nada, no sign of life - it is a dead light again.

WTF! Am I going mad? No switches in the house have been used and I cannot explain it, unless the main sensor has gone and only spiders or something inside the light is triggering it randomly nowadays.

Any advice or experiences?

 

[gbb]

In simple terms, buy a new one.
They dont last forever sadly. Damp gets into the gubbins i should think....i seem to remember replacing two in the last ten or so years.

Sorry, no technical or definitive answers...it's fubar'd.

 

[Norm]

The good news is that they have got cheap so replacing them isn't too tough.

The bad news is that they are ruddy expensive to repair, so those with a conscience will feel guilty about throwing them out and getting a new one.